大型客车车身振动和声学特性分析

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (20) : 183-188.

论文

大型客车车身振动和声学特性分析

孔达1，焦映厚2*，陈照波2，王世超2，包洋2，尚元江2

作者信息 +

Vibration and acoustic analysis of large bus body

Jiao Yinghou , Chen Zhaobo , Wang Shichao, Bao Yang ,Shang Yuanjiang

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文章历史 +

摘要

为了解决客车车身振动导致乘员室产生低频噪声的问题，在对车身骨架结构、车室腔体进行模态特性分析和对车身结构进行频响分析的基础上，运用边界元法对车室进行声场分析和车身板块贡献度分析，进而找出车内噪声声压峰值处所对应的振动频率及该峰值下的“噪声源”板块，提出对车身结构的修改建议。

Abstract

To solve the problem of low-frequency noise in the compartment caused by bus body vibration, based on the analysis of the vehicle body frame structure and chamber cavity mode ,and frequency response analysis of bus body structure as well, boundary element method for sound field analysis of car room and the contribution of body segments are used to find out the car noise sound pressure peak corresponds to the vibration frequency of the premises and the peak under the noise sources section. Finally, some suggestions for bus body modification are put forward.

导出引用

孔达;焦映厚*;陈照波;王世超;包洋;尚元江. 大型客车车身振动和声学特性分析[J]. 振动与冲击, 2012, 31(20): 183-188

Jiao Yinghou;Chen Zhaobo;Wang Shichao;Bao Yang;Shang Yuanjiang. Vibration and acoustic analysis of large bus body[J]. Journal of Vibration and Shock, 2012, 31(20): 183-188